The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 05, 2022
Filed:
Nov. 13, 2020
Applicants:
Kawasaki Jukogyo Kabushiki Kaisha, Kobe, JP;
Nichidai Filter Corporation, Kyoto, JP;
Shinba Iron Works Corporation, Kakegawa, JP;
Inventors:
Kazuki Masui, Grand Rapids, MI (US);
Takaharu Minami, Tsuzuki-gun, JP;
Tadashi Kato, Tsuzuki-gun, JP;
Hideki Takatsuka, Kakegawa, JP;
Noboru Ishizawa, Kakegawa, JP;
Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/34 (2006.01); F01N 13/10 (2010.01); F01N 3/22 (2006.01); F01N 3/28 (2006.01); F01N 1/00 (2006.01); B01D 53/94 (2006.01); F01N 13/00 (2010.01);
U.S. Cl.
CPC ...
F01N 3/34 (2013.01); F01N 13/10 (2013.01); B01D 53/9495 (2013.01); B01D 2255/902 (2013.01); F01N 1/00 (2013.01); F01N 3/22 (2013.01); F01N 3/2803 (2013.01); F01N 3/2892 (2013.01); F01N 13/008 (2013.01); F01N 2330/02 (2013.01); F01N 2330/12 (2013.01); F01N 2590/06 (2013.01);
Abstract
A muffler is detachably attached to an engine. A catalyst for purifying exhaust gas is provided upstream of the muffler, and a secondary air valve for supplying air to an exhaust passage is provided upstream of the catalyst. The catalyst and the secondary air valve are integrally unitized. A catalyst unit including the catalyst and the secondary air valve is provided between the engine and the muffler.